survival system

jungle survival

nuclear survival supplies

survival course

survival knife

survival techniques

tank urban survival kit (TUSK)

survival (radio) equipment

survival equipment

survival situation

survival kit

aid and survival kit

all-рurpose survival ration

Survival, Evasion, Resistance, and Escape tactics (SERE tactics)

survival radio

fire extinguishing system sprinkler system and fire alarm system

merchant ship communication system (mercomm system)

multiple launch rocket system (MLRS); multiple rocket launcher system

Air Force weapons system / AF weapon system

attitude-and-heading reference system / attitude and heading reference system (AHRS)

selective calling system, SELCAL system

Unmanned Aerial System / Uncrewed Aircraf System (UAS)

system of system common operating environment

active denial system

active infrared (IR) guidance system

advanced intercontinental missile system

Advanced Precision Kill Weapon System (APKWS)

AEGIS weapons system

aerodynamic control system

air command and control system (ACCS)

air cooling system

air defense artillery system

air defense guided missile system (AD GM sys)